Evolution of the Permian family Spirolegoceratidae (Goniatitida, Ammonoidea)

The evolution of the Permian ammonoid family Spirolegoceratidae is discussed and a new phylogenetic reconstruction is proposed based on new data. Two subfamilies are recognized within the family Spirolegoceratidae: Spirolegoceratinae Nassichuk and Sverdrupitinae subfam. nov. A new genus, Archboldice...

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Bibliographic Details
Main Authors: Leonova T., Shilovsky O.
Format: Article in Journal/Newspaper
Language:unknown
Published: 2007
Subjects:
Online Access:https://openrepository.ru/article?id=180723